docs: 100 students milestone (#449)

* write blog post

* add link to dblocked

* improve blog SEO

* fix build error

* fix overide metatags issue

apps/classroomio-com/src/routes/+layout.svelte

@@ -1,15 +1,21 @@
 <script>
   import { page } from '$app/stores';
+  import { MetaTags } from 'svelte-meta-tags';
   import Navigation from '$lib/Navigation/Navigation.svelte';
   import Footer from '$lib/Footer/Footer.svelte';
   import PageTransition from './transition.svelte';
   import NotFound from '$lib/NotFound/NotFound.svelte';
+  import extend from 'just-extend';
 
   import '../app.css';
 
   export let data;
+
+  $: metaTags = extend(true, {}, data.baseMetaTags, $page.data.pageMetaTags);
 </script>
 
+<MetaTags {...metaTags} />
+
 <div class="overflow-hidden">
   <Navigation />